This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
A culture group entry records a people, an ethnic community or a linguistic community that the atlas ties its religious material to, grouped by shared language, shared colonial or migratory history, or the community's own self identification, rather than by any single religion its members practice, since one people can hold several traditions at once and a single tradition can span several peoples. Where an entry states a group's language or language family, it follows Ethnologue, the standard reference catalog of the world's living languages, for that specific linguistic classification rather than an informal or dated ethnic label.
An entry links outward to the traditions, deities, practices and sacred sites the atlas associates with that people, and records the documented historical circumstance, migration, colonization or geographic settlement, that the atlas's account of the connection actually rests on, rather than treating the people and their religion as a single fixed unit.
Where a culture group's own religious life includes practice, knowledge or ceremony reserved to its own members or initiates, an entry states plainly that such material exists and is closed, and describes the group's documented history and public religious life from outside that reserved material rather than setting it out.